A vertical electric tailgate

Abstract

The patent of the present invention discloses a vertical electric tailgate, which belongs to the technical field of truck lifting tailgates. The structure includes a lifting assembly, a lower door assembly, a left inner column, a left outer column, an upper door slider, an upper door connecting rod, an upper door hinge support, a motor, a reducer, a gear box, an upper crossbeam, an upper door assembly, a right inner column, a right outer column, a screw lower support bearing assembly, a lifting nut assembly, a screw, a lower door opening and closing rope, a lower door opening and closing nut assembly, an upper door opening and closing rope, an upper door opening and closing nut assembly, a lifting ring, a screw upper support bearing assembly, and a stop ring. The patent of the present invention utilizes a screw transmission mechanism to propose a new vertical electric tailgate, which controls the lifting and lowering of the lower door, the opening and closing of the lower door, and the opening and closing of the upper door respectively through the up and down movement of three nuts on the screw. The lifting movement of the lower door is achieved by the lifting nut assembly driving the lower door assembly through the lifting assembly to achieve the lifting movement, the opening and closing movement of the lower door is achieved by the lower door opening and closing nut assembly connected to the lower door assembly through a rope to achieve the opening and closing of the lower door, and the opening and closing movement of the upper door is achieved by the upper door opening and closing nut assembly connected to the upper door assembly through a rope to achieve the opening and closing of the upper door. The patent of the present invention has an external stop ring structure to manually control the opening and closing of the upper door. The beneficial effects of the present invention are: it adopts a fully electric control and auxiliary manual control system, is simple to operate, has good self-locking performance, high safety, long service life, smooth transmission and low noise, and good compatibility with trucks.

Description

Technical Field

[0001] The invention patent discloses a vertical electric tailgate, which belongs to the technical field of truck lifting tailgates. Background Art

[0002] Traditional on-board vertical tail lifts rely primarily on a chain-assisted hydraulic system, supplemented by manual intervention. These hydraulic systems are noisy, polluting, and have short maintenance cycles. The overall structure also suffers from poor self-locking performance, and the risk of chain breakage and hydraulic failure during cargo lifting can lead to the tail lift falling, posing a significant safety hazard. On some trucks with taller compartments, the upper door is manually operated, which can be difficult to close and easy to open. The high resistance can also easily pull the operator to the ground, posing a safety hazard.

[0003] In order to solve the above technical problems, the present invention provides a safer, more environmentally friendly vertical electric tailgate. Summary of the Invention

[0004] The technical solution adopted in the present invention is as follows:

[0005] A vertical electric tailgate is characterized by including a lifting assembly, a lower door assembly, a left inner column, a left outer column, an upper door slider, an upper door connecting rod, an upper door hinge support, a motor, a reducer, a gear box, an upper crossbeam, an upper door assembly, a right inner column, a right outer column, a screw rod lower support bearing assembly, a lifting nut assembly, a screw rod, a lower door opening and closing rope, a lower door opening and closing nut assembly, an upper door opening and closing rope, an upper door opening and closing nut assembly, a lifting ring, a screw rod upper support bearing assembly, a stop ring slider, and a stop ring. The motor is decelerated by the reducer and transmitted to the screw rod for rotation through the gear box. The upper door opening and closing nut assembly presses the stop ring slider downward on the screw rod to slide downward, driving the upper door opening and closing rope to pass around the lifting ring and pull the upper door slider upward, driving the upper door connecting rod to rotate to open the upper door assembly; the lower door opening and closing nut assembly moves downward on the screw rod, driving the lower door opening and closing rope passed through the rope ring of the lower door opening and closing nut assembly to move downward, so that the lower door assembly can be opened; the lifting nut assembly moves downward on the screw rod, driving the lifting assembly to slide downward along the column slot, so that the lower door assembly can move vertically downward; similarly, the three nut assemblies move upward, the upper door assembly is closed under its own weight, the lower door assembly is closed under the tension of the rope, and the lifting assembly is raised by the nut.

[0006] Furthermore, the lifting assembly has screw holes on the upper ends of the guide rails on both sides for fixed connection with the lifting nut assembly, raised guide keys are processed on the left and right inner sides of the guide rails, and the lower ends are welded to the left and right through square tubes, which have screw holes on them, and the lower door assembly is installed through hinges.

[0007] Furthermore, the lower door assembly has a rope ring welded on the inner side of the door, which is connected to the lower door opening and closing rope.

[0008] Furthermore, the left inner column is welded to the left outer column on the outside, and a guide groove running through the two is provided on the welding surface. A notch is provided on the inner upper plate to slide with the upper door slider, and the upper end of the notch is completely cut off for the installation of internal components. A circular hole is provided in the middle to cooperate with the stop ring, and a rope notch is provided on the lower outside. There is a welding shaft with a small sleeve on the upper and lower parts of the rope notch near the inside, and there is a welding shaft away from the inside. The right inner column is symmetrical with its structure.

[0009] Furthermore, the left outer column is welded to the right inner column on the inner side, and a guide groove running through the two is opened on the welding surface, which cooperates with the stop ring slider and the upper door opening and closing nut assembly. A notch is opened on the inner side surface of the lower end to cooperate with the guide key of the lifting assembly, and the right outer column is symmetrical with its structure.

[0010] Furthermore, the upper door connecting rod has hinge holes at both ends, the upper end is hinged to the upper door assembly through the upper door hinge support, and the lower end is hinged to the upper door slider.

[0011] Furthermore, the screw rod supports the bearing assembly, and threaded holes are opened on the front and rear surfaces, and are fixed to the left outer column by screws.

[0012] Furthermore, the lifting nut assembly has a threaded through hole in the middle that cooperates with the screw rod, four small rollers are installed on the front and back sides, and threaded holes are opened on the left and right sides to cooperate with the screw holes of the lifting assembly.

[0013] Furthermore, the screw rod has a keyway opening at the top end which is connected to the key inside the gear box. The lower section of the keyway shaft is a threaded shaft, and the bearing is fastened by a nut. The lower section of the threaded shaft is a bearing shaft section, which cooperates with the bearing in the bearing assembly supporting the screw rod. The lower section of the bearing shaft end is connected to three threaded sections with different shaft diameters and leads in sequence. The first section cooperates with the upper door opening and closing nut assembly, the second section cooperates with the lower door opening and closing nut assembly, and the third section cooperates with the lifting nut assembly. The three sections of nuts have the same rotation direction. The lower section of the third section is a bearing shaft section, which cooperates with the bearing in the bearing assembly supporting the screw rod. The lower section of the bearing shaft section is a threaded shaft, and the bearing is fastened by a nut.

[0014] Furthermore, one end of the lower door opening and closing rope is connected to the rope ring on the lower door assembly, enters through the rope slot on the left inner column, bypasses the small sleeve of the rope slot upward, passes through the rope ring on the lower door opening and closing nut assembly downward and is connected to the welding shaft away from the interior of the rope slot of the left inner column.

[0015] Furthermore, the lower door opening and closing nut assembly has a threaded through hole in the middle that cooperates with the screw rod, and ball holes are opened on the four sides to install balls for rolling contact with the inner wall of the square tube. A rope ring is welded on the right side, and the width of the rope ring cooperates with the guide groove on the left outer column.

[0016] Furthermore, one end of the upper door opening and closing rope is connected to the rope ring on the upper door opening and closing nut assembly, passes upward through the middle of the lifting ring and downward, and the lower end is connected to the rope ring of the upper door slider.

[0017] Furthermore, the upper door opening and closing nut assembly has a threaded through hole in the middle that cooperates with the screw rod, a flat boss is processed on the right side, a rope ring is welded on the boss, and the width of the rope ring cooperates with the guide groove on the left inner column.

[0018] Furthermore, the stop ring slider has a rope ring welded on the upper surface, a boss structure at the upper right end, the boss width matches the guide groove on the left outer column, and a horizontal through hole is opened in the middle position of the lower right end to match the stop ring.

[0019] Furthermore, the stop ring is composed of a circular ring and a cylinder welded together, which manually locks the upper door closed. When working, it is inserted from the circular hole on the left inner column and fixed through the horizontal through hole in the middle position of the lower right end of the stop ring slider.

[0020] The beneficial effects of the present invention are as follows: the present invention provides a vertical electric tailgate, which adopts a full electric control and auxiliary manual control system, is easy to operate, has good self-locking performance, high safety, long service life, smooth transmission and low noise, and good compatibility with trucks. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the integrated installation of the present invention.

[0023] Figure 2 It is a schematic diagram of the left side exterior of the structural assembly of the present invention.

[0024] Figure 3 It is a schematic diagram of the left interior of the structural assembly of the present invention.

[0025] Figure 4 It is a schematic diagram of the stop ring structure of the present invention.

[0026] Description of Reference Numerals

[0027] A. Vertical electric tailgate; B. Truck model; C. Ground; 1. Lifting assembly; 2. Lower door assembly; 3. Left inner pillar; 4. Left outer pillar; 5. Upper door slider; 6. Upper door connecting rod; 7. Upper door hinge support; 8. Motor; 9. Reducer; 10. Gearbox; 11. Upper crossbeam; 12. Upper door assembly; 13. Right inner pillar; 14. Right outer pillar; 15. Screw lower support bearing assembly; 16. Lifting nut assembly; 17. Screw; 18. Lower door opening and closing rope; 19. Lower door opening and closing nut assembly; 20. Upper door opening and closing rope; 21. Upper door opening and closing nut assembly; 22. Lifting ring; 23. Screw upper support bearing assembly; 24. Stop ring slider; 25. Stop ring. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] The following combination Figures 1 to 4 The embodiments of the present invention will be described in detail.

[0030] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, a vertical electric tailgate comprises a vertical electric tailgate (A), a truck model (B), a ground (C), a lifting assembly (1), a lower door assembly (2), a left inner column (3), a left outer column (4), an upper door slider (5), an upper door connecting rod (6), an upper door hinge support (7), a motor (8), a speed reducer (9), a gear box (10), an upper crossbeam (11), an upper door assembly (12), a right inner column (13), a right outer column (14), a screw rod lower support bearing assembly (15), a lifting nut assembly (16), a screw rod (17), a lower door opening and closing rope (18), a lower door opening and closing nut assembly (19), an upper door opening and closing rope (20), an upper door opening and closing nut assembly (21), a lifting ring (22), a screw rod upper support bearing assembly (23), a stop ring slider (24), and a stop ring (25). The motor (8) is decelerated by the reducer (9) and is transmitted to the screw rod (17) through the gear box (10) to perform rotational motion. The upper door opening and closing nut assembly (21) presses the stop ring slider (24) downward on the screw rod (17) to slide downward, driving the upper door opening and closing rope (20) to pass around the ring (22) and pull the upper door slider (5) to move upward, driving the upper door connecting rod (6) to rotate and realize the opening of the upper door assembly (12); the lower door opening and closing nut assembly (19) moves downward on the screw rod (17), driving the lower door connecting rod (6) to rotate and realize the opening of the upper door assembly (12); the lower door opening and closing nut assembly (19) moves downward on the screw rod (17), driving the lower door connecting rod (6) to rotate and realize the opening of the upper door assembly (12); the lower door opening and closing nut assembly (19) moves downward on the screw rod (17), driving the lower door connecting rod (6) to rotate and realize the opening of the upper door assembly (12); the lower door opening and closing nut assembly (19) moves downward on the screw rod (17), driving the upper ... The lower door opening and closing rope (18) of the door opening and closing nut assembly (19) rope ring moves downward, thereby opening the lower door assembly (2); the lifting nut assembly (16) moves downward on the screw rod (17), driving the lifting assembly (1) to slide downward along the column slot, thereby vertically moving the lower door assembly (2); similarly, the three nut assemblies move upward, the upper door assembly (12) is closed under its own weight, the lower door assembly (2) is closed under the tension of the rope, and the lifting assembly (1) is lifted up under the drive of the nut.

[0031] Specifically, the lifting assembly (1) has screw holes on the upper ends of the guide rails on both sides for fixed connection with the lifting nut assembly (16), and raised guide keys are processed on the left and right inner sides of the guide rails. The lower ends are welded to the left and right through square tubes, and screw holes are opened on the square tubes to install the lower door assembly (2) through hinges.

[0032] Specifically, the lower door assembly (2) has a rope ring welded on the inner side of the door, which is connected to the lower door opening and closing rope (18).

[0033] Specifically, the left inner column (3) is welded to the left outer column (4) on the outside, and a guide groove running through the two is provided on the welding surface. A notch is provided on the inner upper plate portion to slide with the upper door slider (5), and the upper end of the notch is completely cut off for use in installing internal components. A circular hole is provided in the middle to cooperate with the stop ring (25), and a rope notch is provided on the lower outer side. The rope notch has a welding shaft with a small sleeve on the upper and lower sides near the interior, and a welding shaft away from the interior. The right inner column (13) is symmetrical with its structure.

[0034] Specifically, the left outer column (4) is welded to the right inner column (13) on the inner side, and a guide groove running through the two is provided on the welding surface, which cooperates with the stop ring slider (24) and the upper door opening and closing nut assembly (21). A notch is provided on the inner side surface of the lower end to cooperate with the guide key of the lifting assembly (1), and the right outer column (14) is symmetrical with the structure.

[0035] Specifically, the upper door connecting rod (6) has hinge holes at both ends, the upper end is hinged to the upper door assembly (12) through the upper door hinge support (7), and the lower end is hinged to the upper door slider (5).

[0036] Specifically, the screw rod (17) supports the bearing assembly (15) below, has threaded holes on the front and rear surfaces, and is fixed to the left outer column (4) by screws.

[0037] Specifically, the lifting nut assembly (16) has a threaded through hole in the middle to cooperate with the screw rod (17), four small rollers are installed on the front and back sides, and threaded holes are opened on the left and right sides to cooperate with the screw holes of the lifting assembly (1).

[0038] Specifically, the screw rod (17) has a keyway opening at the top end and is connected to the internal key of the gear box (10). The lower section of the keyway shaft is a threaded shaft, and the bearing is fastened by a nut. The lower section of the threaded shaft is a bearing shaft section, which cooperates with the bearing in the upper support bearing assembly (23) of the screw rod. The lower section of the bearing shaft end is connected in sequence to three threaded sections with different shaft diameters and leads. The first section cooperates with the upper door opening and closing nut assembly (21), the second section cooperates with the lower door opening and closing nut assembly (19), and the third section cooperates with the lifting nut assembly (16). The three sections of nuts have the same rotation direction. The lower section of the third section is a bearing shaft section, which cooperates with the bearing in the lower support bearing assembly (15) of the screw rod. The lower section of the bearing shaft section is a threaded shaft, and the bearing is fastened by a nut.

[0039] Specifically, one end of the lower door opening and closing rope (18) is connected to the rope ring on the lower door assembly (2), enters through the rope notch on the left inner column (3), bypasses the small sleeve of the rope notch upward, passes through the rope ring on the lower door opening and closing nut assembly (19), and is connected downward to the welding shaft away from the interior of the rope notch of the left inner column (3).

[0040] Specifically, the lower door opening and closing nut assembly (19) has a threaded through hole in the middle that cooperates with the screw rod (17), and ball holes are opened on the four sides to install balls for rolling contact with the inner wall of the square tube. A rope ring is welded on the right side, and the rope ring width cooperates with the guide groove on the left outer column (4).

[0041] Specifically, one end of the upper door opening and closing rope (20) is connected to the rope ring on the upper door opening and closing nut assembly (21), passes through the middle of the lifting ring (22) upward and downward, and the lower end is connected to the rope ring of the upper door slider (5).

[0042] Specifically, the upper door opening and closing nut assembly (21) has a threaded through hole in the middle to cooperate with the screw rod (17), a flat boss is processed on the right side, a rope ring is welded on the boss, and the rope ring width cooperates with the guide groove on the left inner column (3).

[0043] Specifically, the stop ring slider (24) has a rope ring welded on its upper surface, a boss structure at the upper right end, the boss width matches the guide slot on the left outer column (4), and a horizontal through hole is opened in the middle of the lower right end to match the stop ring (25).

[0044] Specifically, the stop ring (25) is formed by welding a circular ring and a cylindrical body, and is used to manually lock the upper door closed. When working, it is inserted from the circular hole on the left inner column (3) and fixed through the horizontal through hole at the middle position of the lower right end of the stop ring slider (24).

[0045] Specifically, the present invention provides a vertical electric tailgate that adopts a fully electric control and auxiliary manual control system, is easy to operate, has good self-locking performance, high safety, long service life, smooth transmission and low noise, and good compatibility with trucks.

[0046] Specifically, during the implementation process, the installation and use of screws, the specific selection of materials, the calculation and verification of parts, modeling and assembly are common knowledge among people in this field and will not be described in detail in the present invention.

[0047] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort, including but not limited to equivalent replacements, modifications, or improvements, fall within the scope of protection of the present invention. Although various aspects are illustrated in the examples, the drawings are not necessarily drawn to scale unless otherwise indicated.

Claims

1. A vertical electric tailgate, characterized by: The upper door hinge assembly comprises a lifting assembly, a lower door assembly, a left inner column, a left outer column, an upper door slider, an upper door connecting rod, an upper door hinge support, a motor, a reducer, a gear box, an upper crossbeam, an upper door assembly, a right inner column, a right outer column, a lower support bearing assembly of the screw rod, a lifting nut assembly, a screw rod, a lower door opening and closing rope, a lower door opening and closing nut assembly, an upper door opening and closing rope, an upper door opening and closing nut assembly, a lifting ring, an upper support bearing assembly of the screw rod, a stop ring slider, and a stop ring. The motor is decelerated by the reducer and transmitted to the screw rod for rotation through the gear box. The upper door opening and closing nut assembly presses the stop ring slider downward on the screw rod to slide downward, driving the upper door opening and closing rope to bypass the lifting ring and pull the upper door slider upward, driving the upper door connecting rod to rotate to realize the opening of the upper door assembly; the lower door opening and closing nut assembly moves downward on the screw rod, driving the lower door opening and closing rope passed through the rope ring of the lower door opening and closing nut assembly to move downward, realizing the opening of the lower door assembly; the lifting nut The assembly moves downward on the screw rod, driving the lifting assembly to slide downward along the column slot, so that the lower door assembly moves vertically downward; similarly, the three nut assemblies move upward, the upper door assembly is closed under its own weight, the lower door assembly is closed under the tension of the rope, and the lifting assembly is driven by the nut to rise. A keyway is opened at the top end of the screw rod and is connected to the key inside the gear box. The lower section of the keyway shaft is a threaded shaft, and the bearing is tightened by a nut. The lower section of the threaded shaft is a bearing shaft section, which cooperates with the bearing in the bearing assembly supporting the screw rod. The lower section of the bearing shaft end is connected to three threaded sections with different shaft diameters and leads in sequence. The first section cooperates with the upper door opening and closing nut assembly, the second section cooperates with the lower door opening and closing nut assembly, and the third section cooperates with the lifting nut assembly. The three nuts have the same rotation direction, and the lower section of the third section is the bearing shaft section, which cooperates with the bearing in the bearing assembly supporting the screw rod. The lower section of the bearing shaft section is a threaded shaft, and the bearing is tightened by a nut.

2. The vertical electric tailgate according to claim 1, characterized in that: Screw holes are opened at the upper ends of the guide rails on both sides of the lifting assembly for fixed connection with the lifting nut assembly. Raised guide keys are processed on the left and right inner sides of the guide rails. The lower ends are welded to the left and right through square tubes. Screw holes are opened on the square tubes, and the lower door assembly is installed through hinges.

3. The vertical electric tailgate according to claim 1, characterized in that: A rope ring is welded on the inner side of the lower door assembly door and is connected to the lower door opening and closing rope.

4. The vertical electric tailgate according to claim 1, characterized in that: The outer side of the left inner column is welded to the left outer column, and a guide groove running through the two is opened on the welding surface. A notch is opened on the inner upper plate to slide with the upper door slider. The upper end of the notch is completely cut off for the installation of internal components. A round hole is opened in the middle to cooperate with the stop ring, and a rope notch is opened on the lower outside. There is a welding shaft with a small sleeve on the upper and lower sides of the rope notch near the inside, and there is a welding shaft away from the inside. The right inner column is symmetrical with its structure.

5. The vertical electric tailgate according to claim 1, characterized in that: The inner side of the left outer column is welded to the right inner column. A guide groove running through the two is opened on the welding surface, which cooperates with the stop ring slider and the upper door opening and closing nut assembly. A notch is opened on the inner side of the lower end to cooperate with the guide key of the lifting assembly. The right outer column is symmetrical with its structure.

6. The vertical electric tailgate according to claim 1, characterized in that: Both ends of the upper door connecting rod are provided with hinge holes, the upper end is hinged to the upper door assembly through the upper door hinge support, and the lower end is hinged to the upper door slide.

7. The vertical electric tailgate according to claim 1, characterized in that: Threaded holes are opened on the front and rear surfaces of the screw rod lower support bearing assembly, and are fixed to the left outer column by screws.

8. The vertical electric tailgate according to claim 1, characterized in that: There is a threaded through hole in the middle of the lifting nut assembly to cooperate with the screw rod, four small rollers are installed on the front and back sides, and threaded holes are opened on the left and right sides to cooperate with the screw holes of the lifting assembly.

9. The vertical electric tailgate according to claim 1, characterized in that: One end of the lower door opening and closing rope is connected to the rope ring on the lower door assembly, enters through the rope notch on the left inner column, goes around the small sleeve of the rope notch upward, passes through the rope ring on the lower door opening and closing nut assembly downward and is connected to the welding shaft away from the inside of the rope notch of the left inner column.

10. The vertical electric tailgate according to claim 1, characterized in that: There is a threaded through hole in the middle of the lower door opening and closing nut assembly to cooperate with the screw rod. Ball holes are opened on the surrounding surfaces to install balls for rolling contact with the inner wall of the square tube. A rope ring is welded on the right side, and the width of the rope ring matches the guide groove on the left outer column.

11. The vertical electric tailgate according to claim 1, characterized in that: One end of the upper door opening and closing rope is connected to the rope ring on the upper door opening and closing nut assembly, passes upward through the middle of the lifting ring and goes downward, and the lower end is connected to the rope ring of the upper door slider.

12. The vertical electric tailgate according to claim 1, characterized in that: There is a threaded through hole in the middle of the upper door opening and closing nut assembly to cooperate with the screw rod. A flat boss is processed on the right side, and a rope ring is welded on the boss. The width of the rope ring matches the guide groove on the left inner column.

13. The vertical electric tailgate according to claim 1, characterized in that: A rope ring is welded on the upper surface of the stop ring slider, and there is a boss structure at the upper right end. The boss width matches the guide groove on the left outer column, and a horizontal through hole is opened in the middle position of the lower right end to match the stop ring.

14. The vertical electric tailgate according to claim 1, characterized in that: The stop ring is made of a welded ring and a cylinder, which is used to manually lock the upper door closed. When working, it is inserted from the round hole on the left inner column and fixed through the horizontal through hole in the middle of the lower right end of the stop ring slider.

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